fix: resolve mypy errors for agora_token_builder import and AgentSession forward ref

Co-Authored-By: blank@buildwithfern.com <blank@buildwithfern.com>

Author: devin-ai-integration[bot]

src/agoraio/wrapper/agent.py

@@ -1,5 +1,10 @@
+from __future__ import annotations
+
 import typing
 
+if typing.TYPE_CHECKING:
+    from .agent_session import AgentSession
+
 from ..agents.types.start_agents_request_properties import StartAgentsRequestProperties
 from ..agents.types.start_agents_request_properties_asr import StartAgentsRequestPropertiesAsr
 from ..agents.types.start_agents_request_properties_avatar import StartAgentsRequestPropertiesAvatar

src/agoraio/wrapper/token.py

@@ -115,7 +115,7 @@ def generate_rtc_token(
         The generated RTC token.
     """
     try:
-        from agora_token_builder import RtcTokenBuilder
+        from agora_token_builder import RtcTokenBuilder  # type: ignore[import-not-found]
 
         privilege_expire_ts = int(time.time()) + expiry_seconds
         return RtcTokenBuilder.buildTokenWithUid(